thrust or pull would be entirely absorbed by the bearings.
DOUBLE-CYLINDER ENGINES.
Locomotive, marine, and all other engines which must be started in any position have at least two cylinders, and as many cranks set at an angle to one another. Fig. 19 demonstrates that when one crank, C 1 , of a double-cylinder engine is at a "dead point," the other, C 2 , has reached a position at which